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A new small molecule acceptor based on indaceno[2,1-b:6,5-b'] dithiophene and thiophene-fused ending group for fullerene-free organic solar cells
- Xie, Dongjun;
- Liu, Tao;
- Lee, Tack Ho;
- Gao, Wei;
- Zhong, Cheng;
- ... Choi, Hyosung;
- 외 7명
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21초록
A new small molecule acceptor of IDTCN with indaceno[2,1-b:6,5-b’]dithiophene as electron-donating core and CPTCN (2-(6-oxo-5,6-dihydro-4H-cyclopenta[c]thiophen-4-lidene)malononitrile) as electron-withdrawing end-capping group was synthesized and investigated in organic solar cells. The IDTCN shows strong and broad absorption with a high extinction coefficient and appropriate energy levels matching with wide bandgap donor polymer. The best device based on PBT1-EH:IDTCN exhibits an open circuit voltage (Voc) of 0.93 V, a short circuit current (Jsc) of 13.31 mA/cm2, a FF of 0.702, achieving a PCE of 8.69%.
키워드
Non-fullerene acceptors; Small molecule acceptor; End-capping group; POWER CONVERSION EFFICIENCY; HIGH-PERFORMANCE; ELECTRON-ACCEPTORS; POLYMER; DESIGN; INDACENODITHIOPHENE; OPTIMIZATION; TEMPERATURE; ACHIEVE
- 제목
- A new small molecule acceptor based on indaceno[2,1-b:6,5-b'] dithiophene and thiophene-fused ending group for fullerene-free organic solar cells
- 저자
- Xie, Dongjun; Liu, Tao; Lee, Tack Ho; Gao, Wei; Zhong, Cheng; Huo, Lijun; Luo, Zhenghui; Wu, Kailong; Xiong, Wentao; Kim, Jin Young; Choi, Hyosung; Sun, Yanming; Yang, Chuluo
- 발행일
- 2018-01
- 유형
- Article
- 권
- 148
- 페이지
- 263 ~ 269